Authors' response

Affiliations

• ¹ Department of Anaesthesia & Intensive Care, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ² Department of Internal Medicine, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ³ Department of Virology, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁴ Department of Pulmonary Medicine, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁵ Department of Hospital Administration, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁶ Department of Pathology, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁷ Department of Medical Microbiology, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁸ Department of Community Medicine & School of Public Health, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ⁹ Department of Biochemistry, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ¹⁰ Department of Paediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ¹¹ Department of Haematology, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
• ¹² Department of Psychiatry, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.